Re: avg 7.5

Do you have the free version of AVG? That protects against computer viruses only, not against spyware. Spybot Search and Destroy detects and removes spyware, but not computer viruses. So you should use both programs - each does something different.

(The paid version of AVG includes protection against spyware as well as against viruses)

Re: avg 7.5

I use Norton Internet Security 2007 (not free, Firewall, Anti-Virus, Anti-Spyware) and Windows Defender (free from Microsoft) for continuous protection and scheduled scans.
Apart from that, I run weekly scans with Ad-Aware and with Spybot Search and Destroy (both free).
I also have SpywareBlaster (free); this doesn't run anything but adds a lot of suspect websites to the Restricted Sites zone so that they cannot do anything.